The Trump administration revoked Harvard University's ability to enrol international students on Thursday. Current students will be forced to transfer to other schools or lose legal status, the U.S. Department of Homeland Security said.

Harvard is at the center of the Trump administration's higher education pressure campaign — and has emerged as the example of what happens when a university pushes back against the government's demands.

The pressure campaign to try to force the nation’s oldest and wealthiest university to fall in line with President Trump’s agenda has sprawled beyond just one singular task force or agency.